WZor, a well-known source for Microsoft software leaks, has tweeted in response to earlier speculation regarding the launch of Windows 9, saying that the development of the operating system could reach the release to manufacturing (RTM) stage by 21 October 2014.

http://t.co/qCZy2Lzt7G hey men ~ Win 9 released in April 2015? No! No! No! ..WIN RTM-0 RELEASED SIGN-OFF DEALINE IN 21 OCTOBER 2014 :)

Windows 9 is expected to advance the Modern UI further as "Metro 2.0," to be more mature and usable. Although we have heard that Microsoft won't be making pre-alpha builds available to developers at the upcoming BUILD 2014 in April, we can expect to hear more about the future operating system directly from the company.